Term: Antidepressants

Glossary Definition

Last Updated: 2015-01-29

Definition:

Antidepressants are medicines used to help people who have depression, other mood and anxiety disorders, and numerous other conditions such as nerve pain (Kennedy, Lam, Cohen, Ravindran, & CANMAT Depression Working Group, 2001; Saarto & Wiffen, 2007).

Most antidepressants are believed to work by slowing the removal of certain chemicals from the brain. These chemicals are called neurotransmitters and are needed for normal brain function. Antidepressants help people with depression by making these natural chemicals more available to the brain. Antidepressants are typically taken for at least four to six months. In some cases, patients and their doctors may decide that antidepressants are needed for a longer time. In addition, some drugs classified as antidepressants are also used for other health problems" (Fransoo et al., 2009).

Antidepressants are identified by the Anatomical Therapeutic Chemical (ATC) drug classification codes: N06AA,N06AB,N06AF,N06AG,N06AX (Katz et al. (2004).

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